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CVE-2021-33909

Status Candidate

Overview

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Related Files

Red Hat Security Advisory 2021-2730-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2730-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33034, CVE-2021-3347, CVE-2021-33909
SHA-256 | 07b4ce1a7f36788e6e18670bf06262ba67435c493f6f7f38252b8546a9833bdf
Red Hat Security Advisory 2021-2722-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2722-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33909
SHA-256 | d669165ceb438c7f3c99197406abf2130aca0151fcb91ce843c23914b8ea9bb8
Red Hat Security Advisory 2021-2732-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2732-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-28374, CVE-2021-33034, CVE-2021-3347, CVE-2021-33909
SHA-256 | 0ae2089bc9085202733263eabe1826d5a267dff310b38d9b7973e70e4d251579
Red Hat Security Advisory 2021-2715-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2715-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-32399, CVE-2021-33909
SHA-256 | b80631911b84eaaf5a2237e235f9755bd1e8cd1d191b9111a4d7958da9ce28c5
Red Hat Security Advisory 2021-2735-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2735-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include integer overflow and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12362, CVE-2021-3347, CVE-2021-33909
SHA-256 | ff1d4a6c47cccdd4122b28caf122e846547d69d96aac7c84018a10628851d1e4
Red Hat Security Advisory 2021-2733-01
Posted Jul 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2733-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33034, CVE-2021-3347, CVE-2021-33909
SHA-256 | ca38ab42ac4f33858c1d5edee5152754975974c2c92cbb706d97793270597de5
Red Hat Security Advisory 2021-2734-01
Posted Jul 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2734-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-33034, CVE-2021-33909
SHA-256 | 99f079adc186c2d82d3b579e84be343741eb238b4be2a07e3522085c19e36304
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